Trees in world Machine

General Discussion
#1

hi everyone

Huge fans of world machine and been using it on many projects, and we are working on a movie that has these aerial shots of some mountains, .

I am trying to work out a way of maybe scattering very small trees.

there was a previous post here with someone that was able to nail that look, and I wondered if you guys can suggest ways of creating the same exact look?

any help and feedback would be greatly appreciated

#2

Hi there,

Are you looking to “simulate” trees in World Machine by including them into the terrain or texture created from WM, or drive vegetation in your renderer with a weight map?

For the first, there is a macro included with recent World Machine builds called “Vegetation Scatter” that will do what you want; feed it your existing texture and a weightmap governing how to distribute the vegetation.

For the second, the latest build 3025 ‘Alpine Lakes’ includes a Select Wetness device that is great for plant placement as it produces an index of soil wetness; otherwise, try using the erosion flowmap output for a similar effect.

#3

Hi Stephen,

thanks for replying, I am looking to include them into the terrain as some part of the geo and the height map, we have shots where the trees would be miles away from the camera.

I was able to get it to show as spikes on the terrain that looks OK, but I was wondering if there was a more refined way of displaying them.

#4

I’m trying to add trees into my world but I cannot find any tool called Vegetation Scatter. How did you add trees to your worlds?

#5

We sadly can’t have proper trees in WM, as those have overhangs, which is not possible with heightmaps. Green spikes is the go to visualisation stratetgy :wink: